Vivotek IP2112 - Manual (Page 28)

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Administrators should notice that the basic network settings including IP address,
subnet mask, default router and DNS servers will be cleared when the network interface
is switched to the other between Ethernet and modem.
Video and motion detection
Adjust image settings
"Time stamp" and "Text on image" will be enclosed in image for reference. The
timestamp is captured from date and time of Network Camera that is maintained by an
on-board real-time clock. "Color" setting is independent of the connected camera and
“B/W” option can speed up the encoder a little. “Default size” option here will be the
default size of video window when users first connect to Network Camera. “Default
quality” option here will be the default quality when users first connect to Network
Camera. To adjust image settings for best visual quality, press
and a
motion picture window will pop up for your reference. There are four fields including
"Brightness", "Contrast", "Hue" and "Saturation" for video compensation. Each field
has eleven levels ranged from -5 to +5. While adjusting, administrators can click on
to check prior to the setting in memory. If the adjustment is not good,
administrators can click on to restore the original settings without change. After
configuration done, click on to close this window. If parameters are changed
without saving, they will be used until the next system startup.
Configure motion detection
The channel can have its own settings of motion detection independently. The settings
including “Object size” and “Sensitivity” allow administrators fine tune to fit into the
environment. The “Object size” decides the space ratio of motioned objects over the
monitored screen. The “Sensitivity” sets the measurable difference between two
sequential images that would indicate motion. The larger object size and lower
sensitivity will make Network Camera ignore small variations in images. While the
motion amplitude of some object in the monitored screen is over the settings, a white
M
in red background will indicate at the upper-right corner of the window.
Motion detection is provided as reference because it is very environment-dependent.
Especially working by the very sensitive settings, some triggered events may be
considered as false alarms though there is tiny difference happening indeed. It can be
affected by florescent light flashing, shadow shifting, and so on.